Disclosed is an imaging method based upon the chemical intensification of a polyene image dispersed in an imagewise manner upon a substrate. The method involves contacting the film with maleic anhydride to form a reaction product between the polyene and maleic anhydride. This reaction product is then contacted with a base capable of converting the carboxylic acid anhydride group of the maleic anhyride to its corresponding salt and the so-formed salt is contacted with a solution of a dye containi...

Optical diodes are shown in the forms of a mechanically contacted cat whisker system and as single and multiple microscopic solid portions in an integrated solid mass, defining both the antenna and the junction, preferably as a deposit of solid layers upon a substrate, preferably as overlapping printed circuit line structures. Arrays of such junctions provide enhanced effects. In a scanner, read-out from the junctions is shown indirectly, using an electron beam, and directly using leads connecte...

An electrophoretic imaging system is described in which a particulate image is transferred to a receiving sheet having a water tackifiable surface. The surface is moistened, pressed against the image and dried. In a preferred embodiment, the water tackifiable material is converted to a water insoluble form by heat after transfer of the image.

Disclosed is an imaging method which involves exposing to activating radiation in an imagewise manner a film comprised of a matrix polymer as the principal ingredient, a degradable polymer and a photo-oxidant. Exposure of the film causes degradation of the degradable polymer, e.g., poly(acetaldehyde), whereupon the film undergoes a change in optical density in the exposed areas to provide a visible image.

An electro-optic device comprising, in turn, a first electrode, a photoconductive layer, a liquid crystalline layer, and a second electrode, and imaged with background at a voltage v.sub.o, is imaged without background by relatively slowly applying v.sub.o. Optionally, v.sub.o is relatively slowly reduced to zero to prevent background creation during removal of v.sub.o.

Acoustic energy generated at, or reflected from, a specific area in the ocean is collected by an array of n transducer elements. The signals from these elements are amplified, processed and fed to a scaled down set of n transmitting transducer elements similarly shaped and similarly positioned relative to each other. These transmitting elements are located in one region of a tank of liquid and an array of detectors for monitoring the sonic energy distribution is located in another region of the ...

The invention provides RF field coils and detector coils for an NMR machine. The two coils are specially designed for their respective purpose, the transmit coil (5, 6) being rectangular and the received coil (7-11) substantially elliptical with defined axis ratios and spacing in the z-direction being by projection of equi-spaced conductors on to the ellipse.

Magnetic imaging apparatus and method wherein a latent magnetic image is created on a magnetizable imaging member comprising a base or web containing a magnetizable component and wherein said imaging member has an overcoating of an electroconductive material. After development of the latent image with a magnetic toner composition, the developed image is transferred by pressure contact to a receiving substrate and fixed thereto. The imaging member provides substantially improved adhesive properti...

An imaging system for collecting radiation from a scene and producing an image of the scene includes first and second scanning rotors, said first scanning rotor having a set of n.sub.1 plane mirrors which extend around the first rotor axis, said second scanning rotor having a set of (n.sub.1 +n.sub.2) plane mirrors which extend around the second rotor axis (where n.sub.1 and n.sub.2 are integers), wherein adjacent mirrors in said first and second sets are inclined at different angles to the axes...

In an NMR examining arrangement for producing an image of a region, generally a planar slice, of a body, it has been suggested to derive, from the resonance signals, a plurality of values, for strips in the slice, and then to convolve them with a convolution function to be suitable for back projection in the manner known for x-ray signals. In this invention it is proposed to modulate the resonance signals with a suitable function and then to Fourier transform them but not to convolve them. The m...